Bump to dotnet/java-interop@ef82a07a

Fixes: #10509
Changes: dotnet/java-interop@19be370...ef82a07

Update an existing test for #10509.

Author: jonathanpeppers

external/Java.Interop

@@ -443,6 +443,17 @@ public void BuildHasNoWarnings (bool isRelease, bool xamarinForms, bool multidex
 			proj.SetProperty ("XamarinAndroidSupportSkipVerifyVersions", "True"); // Disables API 29 warning in Xamarin.Build.Download
 			proj.SetProperty ("AndroidPackageFormat", packageFormat);
 			proj.SetProperty ("TrimmerSingleWarn", "false");
+			
+			// Add test code for: https://github.com/dotnet/android/issues/10509
+			proj.MainActivity = proj.DefaultMainActivity.Replace ("//${AFTER_ONCREATE}",
+				"""
+					// These should not cause warnings
+					new FrameLayout(this).Foreground = null;
+					new ListView(this).Adapter = null;
+					var a = Android.Provider.MediaStore.Video.IVideoColumns.DateTaken;
+					var b = Android.Provider.MediaStore.Images.IImageColumns.DateTaken;
+				""");
+
 			using (var b = CreateApkBuilder ()) {
 				Assert.IsTrue (b.Build (proj), "Build should have succeeded.");
 				b.AssertHasNoWarnings ();